Ensuring Your Equipment Keeps Going Strong

Experience Matters With Hawthorne Cat

With over 60 years of industry experience, Hawthorne Cat offers an outstanding Cat machine service department that delivers the best customer experience in the industry. Our certified Cat technicians are trained to service all Cat products and Allied Brands including machinery, power generation and backup systems, and marine propulsion engines. Hawthorne Cat’s service team recently won the Caterpillar Award for Outstanding Customer Service, receiving the highest rating of any construction service provider in the country.


Cat Parts

Customer Value Agreements

S.O.S Oil Analysis

State-of-the-Art Service Facilities

24-Hour Service

Choose Parts.Cat.Com for Cat Parts

Parts.Cat.Com has over 1.4 million Cat certified parts in stock. Customers are able to pre-order parts online through Parts.Cat.Com. And our fleet of 30 service trucks are available to ensure your equipment is ready to go when you are. Hawthorne Cat’s goal is to make maintaining your equipment as easy as it was buying it in the first place.

Customer Value Agreements = Good Value

By properly maintaining your equipment with a Customer Value Agreement (CVA), you can maximize the up-time of your equipment by identifying equipment issues before they cause failure – saving you time and money. CVAs typically include on-site preventative maintenance services performed to factory specifications by our Cat certified technicians. Our experienced service team will customize your CVA to achieve a cost effective maintenance solution that will meet the specific needs of your business.

Fluids, Filters & More

Hawthorne Cat is the one-stop shop for outstanding service and support for your equipment needs. We are a full service provider for bulk and packaged fluids for all Cat and non-Cat makes and models.

Customers can request a complimentary S.O.S. Oil Analysis for all major oil-lubricated systems of your machine (engine, transmission, hydraulic system, and final drives) and a detailed walk around inspection (technical analysis). Our Conditioning Monitoring Analysts will provide you with a detailed report with recommendations to ensure your equipment is properly maintained to maximize the up-time of your machine.

State-of-the-Art Service Facilities

Hawthorne Cat takes great pride in our premier service locations. Our main service center in San Diego, California has over 50,000 square feet of floor space with 42 fully loaded service bays. Hawthorne is one of only a few service facilities in Southern California with an engine dynamometer. Our facilities showcase metal lathes, a 30,000 lbs torque wrench, line boring services, a stress relief machine, paint booths for large equipment, end mills, auto welders and the capability to re-shape and re-skin moldboards, dozer blades and buckets.

Working for You

Whether you live in San Diego, the Hawaiian Islands or the Pacific Region, you can count on Hawthorne Cat to be there to provide the service and support you need. Call 800.437.4228 to reach one of our expert parts and service team members for assistance.

After Hours Support

Whether the power goes off at 3 am or your excavator needs service during your night time project, the parts and service team at Hawthorne Cat is here for you – 24 hours a day, 7 days a week, 365 days a year. Our experienced, certified technicians will provide you with the after hours service and the Cat certified parts you need to get you up and running in no time.

San Diego Service After Hours
Machinery Service | 858.688.0111
Power Systems – Marine/Engine/Generator Service | 858.376.6800

Hawaii Service After Hours
Waipahu Service | 808.265.1863
Hilo Service | 832.318.5119
Kona Service | 808.600.4184
Kauai Service | 808.212.6744
Maui Service | 808.342.2986

Guam Service After Hours | 671.898.2735
Saipan Service After Hours | 670.287.6900
American Samoa Service After Hours | 684.258.8355


When it comes to heavy equipment, it's a fact that they will need regular service and maintenance in order to keep going strong. It does you almost no good to purchase a new or used piece of machinery and have no one to help you when it goes down.

Here at Hawthorne Cat, we pride ourselves on knowing your every need is met, from the moment you inquire about a Caterpillar machine to the moment you sell it — and all the moments in-between when you need help. Our service department excels at diagnosing, troubleshooting, and repairing your Cat heavy machinery so you can get back to work. We understand that down time is money out the door, so we work diligently on solving your issue.

If you are looking for new, used, or rental heavy equipment in San Diego, Hawaii, American Samoa, or Saipan, Hawthorne Cat is the trusted name for quality, reliability, performance, and customer care. Contact one of our Cat dealers today!



Larry Boardman
General Service Manager
858.674.7043 office
951.544.4872 mobile
[email protected]


Jeff Reid
Service Manager
858.376.6890 office
858.472.1852 mobile
[email protected]



Doug Kaauwai
Service Manager
808.676.0306 office
808.265.1863 mobile
[email protected]


Robert Szelinski
Service Manager
808.963.5360 office
832.318.5119 mobile
[email protected]


808.245.4058 office
[email protected]


Brooke Walker
General Service Manager
808.877.6538 office
808.778.7019 mobile
[email protected]


Darrell Slyter
Branch Coordinator
671.649.4212 office
671.898.2735 mobile
[email protected]